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The goal of this science fair project is to assess the acidity levels of common food and household products using pH test strips.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

Teach your little scientist about the amazing powers of gravity by comparing the falling speeds of two yummy fruits

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

In this Halloween-themed activity, young learners will find out what happens when they mix two household items together to create a surprising chemical reaction.

Making your own glass cleaner is easy, effective and inexpensive!

Future whistleblowers can learn about product safety standards with this exercise in writing and researching.

Want to give your teen some insight into the scientific method and get the house cleaned? This activity promises both!

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!

How to test for acids and bases? In this activity you and your child can make your own indicator from red cabbage!

Design a hearing protection device to protect their ears from loud noises. Examine the properties of current protective hearing devices, materials.

Take the plunge into handcrafting with this neat and tidy soap recipe. Here's how to create your own personalized soap.

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

Experiment with the wonders of pressure and condensation by crushing a soda can with nothing but air and water!

This quick and simple preschool mirror activity will introduce your child to the science of reflection and light with a flashlight experiment and picture game.

Your 1st grade scientist will improve her observation skills as she's encouraged to eat healthy by comparing the dry and fresh fruit in this experiment.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Bring back the groovy memories by making shrinky dinks using household materials, while learning about the science of plastics. Here's how to get started:

Believe it or not, the common spud has enough electrochemical energy to power a small digital clock.

Show your child that the simplest ingredients (salt and water) can be used to illustrate the concept of density!

How powerful is the reaction between baking soda and vinegar? Find out here!

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

Here's a fun activity to reinforce the physics concept of stored energy for your middle schooler.

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!

Your second grader will love this simple soda bottle race car activity. Make a ramp and customize your car for an entertaining way to learn scientific concepts.

This science fair project idea explores whether talking to a plant will help it grow.

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.